One of the best ways to keep Sunbrella fabrics looking good and to delay deep or vigorous cleaning is to properly maintain the fabrics. This can be accomplished by simply brushing off dirt before it becomes embedded in the fabrics, wiping up spills as soon as they occur or spot cleaning soon after stains occur.
Most stains can be removed from Sunbrella fabric with mild soap and lukewarm water. First blot the excess stain residue. Mix mild soap and lukewarm water and remove the stain with a sponge or soft bristle brush. Be sure to rinse thoroughly to remove all soap residue and then allow the fabric to air-dry.
If the stain is still visible, blot excess stain residue. Mix 1 cup of bleach and 1/4 cup of mild soap per gallon of lukewarm water and remove the stain with a sponge or soft bristel brush. Rinse thoroughly and allow to air-dry.